Red Sea Prov.: Between Suakin & Berber; Bahr El Jebel (Sudd country?). =E. Murieli= _N.E. Br._ SHAGAR EL SIM—Arab. Large tree with ascending, leafless and spineless branches, forming a large crown; branches slightly constricted at regular or irregular distances; constrictions all of same diameter; angles 4, sometimes 5, margins even; spines 0; spine shields horny, oblong, ¼-½ in. apart, not connected by horny border. Leaves rudimentary, minute. Cymes numerous at top of branchlets; pedicels ½-1 in. long bearing, on branches ¼-⅓ in. long, 3 invols.; bracts minute, suborbicular; invol. ¼ in. diameter; lobes 5, short; glands 5 erect, contiguous or nearly so, reniform, forming a lip. Capsules exserted, curved to one side, ⅓ in. diameter. Bahr El Jebel. =E. Erythrææ= _N.E. Br._ Small, leafless, succulent, spiny tree; branches ascending, candelabrum- like, 3-4 or 5-7 angled, irregularly constricted; angles wing-like, up to about 1 in. broad, straight or wavy; spines in pairs up to ⅓ in. long, on suborbicular shields close together but not connected. Flowers and fruit not known. Nubia (between Suakin & Berber: Harassa valley). =E. calycina= _N.E. Br._ Succulent, spiny, leafless tree, 30 ft. high; branches 4-angled, wing- like, faintly sinuate, with small central core; constrictions slight, 5-7 in. apart or more; spines up to ⅙ in. long, in pairs ½-¾ in. apart, on oblong or suborbic. shields which are not connected by horny border. Leaves scale-like. Cymes on peduncles ½-¾ in. long, bearing a central, sessile, male invol. and 2 lateral hermaphr., on short branches. Invol. about ¼ in. diameter, shallowly cup-shaped; lobes 5, broad, fringed; glands 5, subcontiguous, transverse reniform, 2-lipped with ends decurved. Ovary exserted. Bahr El Ghazal Prov. (Meshra El Rek, Mittu-land: at Legbi). =E. Candelabrum= _Trémaut._ SHAGAR EL SIM—Arab; AURI (J. Daier)—Nuba; BAKUNGI & FUFUMI—Bari; KAKOB—Bongo; BOL & BUAL (Bahr El Jebel)—Dinka; BULL—Nuer. Armed tree with stem up to 3 ft. diameter, forming a large crown of candelabrum-like habit; branchlets fleshy, 3-4 or 5-angled, not wing- like, constricted at intervals; core thicker than in preceding; spines geminate, diverging, up to ⅙ in. long, on rounded horny cushions which are not decurrent. Flowers and fruit not known. Southern Sudan (on poor soil or rock). The milky juice is used for poisoning arrows. 230 =Bridelia scleroneuroides= _Pax._ APIAT (Bahr El Ghazal)—Dinka; INZI—Golo. Shrub or small tree; branchlets yellowish hairy. Leaves alternate, oblong-elliptic to oblong-lanceolate, 1-5 in. long, pubescent above when young, softly and densely pubescent beneath; lateral nerves straight to the margin. Flowers monœcious; male flowers small, numerous, subsessile in leaf-axils; sepals 5, ovate; petals 5, broad-ovate, toothed at apex; stamens 5; female flowers fewer or solitary: sepals as in male; petals elliptic-ovate, thick, slightly bifid; styles 2, bifid. Drupe globose, ¼ in. diameter, 2-celled.